html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd" Together with Italy's Ministry of Foreign Affairs and International Cooperation, Italy's Ministry of Environment and Energy Security, CIHEAM Bari, the World Bank Group's Connect4Climate program, Brazil's Ministry of Foreign Affairs, and Bloomberg Philanthropies, CRA-Carlo Ratti Associati and Höweler + Yoon have unveiled AquaPraça, a floating cultural plaza that will serve as the focal point of COP30 in Belém, Brazil. AquaPraça serves as a forum for international climate discussion by utilizing sensing technologies and Archimedes' principle to adjust to shifting sea levels and occupancy demands. It will make its transatlantic journey to the Amazonian city, where it will become a permanent cultural landmark, after making its premiere at the 19th International Architecture Exhibition of the 2025 Venice Architecture Biennale. The architecture of AquaPraça, which spans more than 400 square meters (4,000 square feet), physically carves out public space from the sea, establishing a tangible conversation between natural forces and the constructed environment. Using the concepts of buoyancy, displacement, and equilibrium, the submersible structure floats. AquaPraça continuously adjusts its holding and releasing capacity to keep a low freeboard with the surrounding water level. At eye level, the audience witnesses the dynamic variations of sea level rise, resulting in fresh insights into urban and ecological systems. AquaPraça's aim is to act as a civic catalyst. It can accommodate more than 150 people for cultural events, workshops, symposia, and exhibitions. It will make its sustainable journey to Belém after making its debut at the Biennale Architettura in September 2025. There, it will be a crucial component of the Italian Pavilion at COP 30, showcasing Italy's architectural and climate action thoughts to a worldwide audience. As a permanent legacy of the summit in the Amazon, the platform will continue to be a component of Belém's cultural infrastructure after the summit. A special international alliance makes AquaPraça possible. It was started in collaboration with the Ministry of Environment and Energy Security and the Ministry of Foreign Affairs and International Cooperation in Italy. It is also supported by Bloomberg Philanthropies, the World Bank's Connect4Climate program, CIHEAM Bari, Brazil's Ministry of Foreign Affairs, and others. The establishment emphasizes the goal of bringing disparate communities together and promoting ecological thought globally. There is a formal procedure in place for expressing interest."In 1979, Aldo Rossi launched the Teatro del Mondo at the first Biennale Architettura, positing that architecture could engage with the past," said Carlo Ratti, professor at MIT and the Politecnico di Milano, co-founder of CRA, and curator of the Biennale Architettura 2025.""Today, AquaPraça shows how architecture can engage with the future—by responding to climate and engaging with nature rather than resisting it,” Ratti added."AquaPraça lets visitors meet the sea at eye level," said Eric Höweler, co-founder of Höweler + Yoon and a Professor at Harvard University. "Its sloping surfaces and shifting levels embody a delicate equilibrium." "It’s a platform, both literal and figurative, for deepening our collective understanding and experience of sea level rise and the impacts of climate change on global cities and communities," added J. Meejin Yoon, co-founder of Höweler + Yoon and the Gale and Ira Drukier Dean at Cornell University College of Architecture, Art, and Planning, “and seeking collective solutions."Image © Agnese BediniImage © Agnese BediniImage © Agnese BediniImage © Agnese BediniImage © Agnese BediniImage © Agnese BediniLeading cutting-edge steel construction firm Cimolai is now building AquaPraça in northeastern Italy. It will be exhibited on September 4, 2025, at the 19th International Architecture Exhibition of the 2025 Venice Architecture Biennale, before traveling to Brazil. A permanent floating monument in the Amazon, it will be anchored in Belém from November 10–21, 2025, as part of the Italy Pavilion at COP30. It is an architectural example of flexibility and communication in the face of climate change.Project factsProject name: AquaPraçaArchitects: CRA-Carlo Ratti Associati (Coordinator) and Höweler + Yoon ArchitectureTeam MembersCRA-Carlo Ratti Associati: Carlo Ratti (Principal), Andrea Cassi (Principal), Luca Bussolino (Strategy), Gizem Veral (Architect), Sonia Simone (Architect), Rodolfo Siccardi (Senior Architect), Gary di Silvio (Architect/3D Artist), Pasquale Milieri (Architect/3D Artist), Gianluca Zimbardi (Architect/3D Artist); Höweler + Yoon Architecture: J Meejin Yoon (Principal), Eric Höweler (Principal), Asli Baran Grace (Project manager), Shuang Chen (Designer), Selin Sahin (researcher), David Hamm (Technical Advisor) Supporters: Ministero degli Affari Esteri e della Cooperazione Internazionale; Ministero dell’Ambiente e della Sicurezza Energetica; Bloomberg Philanthropies; Cornell University College of Architecture, Art, and PlanningIn collaboration with: Ciheam Bari, the World Bank Group’s Connect4Climate Program Technical Collaborators: Elettra Bordonaro, Argun Paragamyan, and Luciana Martinez, Light Follows Behaviour; Cristiano Bottino, Studio FM; Mykola Murashko, Davide Spina, Julio Ramirez, and Eren Sezer, Maestro Technologies; Corrado Curti, IngeMBP; Luca Infanti, Luca Vian, Simone Andreatta, Filippo Bellomo, and Mario Nattero, CIMOLAI; Roberto Prever and Antonio Vatta, NAOS; Ruben Pescara and Lodovica Bontempelli, NMLex; Domenico Perrotta, DP38.All images courtesy of CRA and Höweler + Yoon Architecture.All exhibition images © Agnese Bedini.> via Carlo Ratti Associati